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- STYPE 1.2
- 85 Jan 31
-
- >>>> REQUIRES IBM ENHANCED GRAPHICS ADAPTOR <<<<
-
- Smooth scrolling for the EGA.
-
- STYPE FILENAME
- or
- STYPE (uses standard in)
-
-
- Description:
-
- STYPE types a file to the screen controlled by an IBM Enhanced
- Graphics Adaptor, using variable speed smooth scroll. If no file
- name is supplied, it will read from standard in (eg: STYPE <
- FILENAME, or PROGRAM | STYPE), and thus can act as a "MORE" type
- filter. The EGA must be in 25 line character mode. The EGA must
- be the current console device; this requirement is new with this
- version. It can be emulating either the IBM Monochrome Display
- and Printer Adaptor or the IBM Color/Graphics Monitor Adaptor, or
- it can be in the new Enhanced Color Mode (25 lines, character rows
- 14 pels high).
-
- The scroll speed may vary from stopped (0) to one line per
- vertical retrace (speed 14 in mono mode, or 8 in color mode), by
- units of 1/2. The speed represents the number of vertical pels
- scrolled per vertical retrace. (A speed of 1/2 means it scrolls 1
- pel every 2 retraces, or speed 1 1/2 means it scrolls alternately
- 1 and 2 pels). The following commands may be typed while stype is
- showing the file:
-
- + increment speed by 1/2 unit (up to max speed)
- - decrement speed by 1/2 unit (down to zero, or stopped)
- 0-9 set speed to number given
- space pause if moving, restart if paused [new action this version]
-
- Any other key will abort stype and return to DOS.
-
-
- Problems:
-
- It will not support graphic modes, nor the new 43 line character
- modes currently. 43 line mode is some trouble and may require
- temporarily blanking or glitching the screen on exit.
-
- It cannot detect what mode the EGA is in unless it is the current
- CON: device, thus the requirement that the EGA be the current
- console. Use version 1.1 if you want the EGA to scroll whether or
- not it is the console - but the EGA must then be either standard
- mono or standard color, not in any new mode.
-
- Author:
- Zhahai Stewart
- Highly Interactive Systems
- 6521 Old Stage Rd.
- Boulder, CO 80302
- (303) 449-8180
-
- Distribution: May be freely distributed if not for commercial
- advantage, and if the signon credits are not changed.
-